Sagot :

Bonsoir
A= 12-(6*6)= 12-36= -24
B = (-5)*(-5)+13= 25+13=38
C= (-4)*(-4)+21= 16+21=37
D= (-2)*(-5)-(-5)*(-5)= 10-25= -15

A=12-6²

=12-36

=-24

B=(-5)²+13

=25+13

=38

C=-4²+21

=-16+21

=5

D=(-2)x(-5)-(-5)²

=10-(-5)²

=10-25

=-15